Solve for x with vertical angles and linear pairs
Vertical angles are equal; a linear pair adds to 180°.
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The angles (x + 1)° and (5x − 107)° are vertical angles. Find x.
Answer: 27
The angles (4x − 29)° and (5x − 51)° are vertical angles. Find x.
Answer: 22
The angles (x + 20)° and (2x − 10)° are vertical angles. Find x.
Answer: 30
Tip: Vertical angles are equal; a linear pair adds to 180°.
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